Well I'm going out today.   Last time there I thought the top end of the pool area was a little dirty.
You asked, "has I seen anyone cleaning?" I did go for a  swim on day at 6:40 in July  - around sunrise , so at my own risk ! Iit was wonderful by the way).
At  7:15  as I was about to leave, four guys came along wearing green uniforms.  One clearned the pool with a net whilst the other three seemed to stand around and supervise.
If there guys are supposed to clean - then there's more than enough of them - just more supervision is needed.
I will talk with AEA about it and also take photo's of any dirt - like all the cigarette ends by the gate at the top end of the bottom pools.